When you ask "What number is halfway between 79 and 179?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=79 and Y=179.
To find the number halfway between 79 and 179, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 79 and 179 into our formula, we get:
(79 + 179)/2 = 129
Thus, the number halfway between 79 and 179 is 129.
To check that our answer is correct, we subtract 79 from 129 and subtract 129 from 179 and compare the two numbers:
129 - 79 = 50
179 - 129 = 50
As you can see, the halfway number is 50 higher than 79 and 50 lower than 179. Therefore, our halfway between answer of 129 above is correct.
Halfway Between
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Halfway Between 79 and 180
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